AP BIOLOGY

Detailed explanation-1: -A dominant trait will always be expressed in the offspring if the dominant allele is present, even if there is only one copy of it (heterozygous or dominant homozygous, Aa or AA).

Detailed explanation-2: -“A person with a dominant personality type is assertive, courageous, proactive, and self-reliant, ” she says. “They are focused and goal-oriented as well. These individuals carry themselves in a manner that is socially impressive and emanates positive vibes to others.”

Detailed explanation-3: -Traits are coded in the form of genes, genes are sequences which would code for particular polypeptide which would eventually lead to the formation of particular proteins, proteins would then lead to the expression of particular trait.

Detailed explanation-4: -For example, the allele for brown eyes is dominant, therefore you only need one copy of the ‘brown eye’ allele to have brown eyes (although, with two copies you will still have brown eyes).

Detailed explanation-5: -From this, people often jump to the conclusion that the dominant trait is also the most common one. This isn’t always the case and there is no reason it should be. Whether or not a trait is common has to do with how many copies of that gene version (or allele) are in the population.